---
id: CVE-2026-95811
title: >-
  Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before
  2.21.6, from 2.22.0 before 2.23.4 for Perl allow an equivalent spelling of a
  path to bypass the locationRules that restrict it.


  The handler matches each vhost…
summary: >-
  Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before
  2.21.6, from 2.22.0 before 2.23.4 for Perl allow an equivalent spelling of a
  path to bypass the locationRules that restrict it.


  The handler matches each vhost…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-180
  - CWE-863
vendor: Red Hat
product: Lemonldap-NG-Handler
affected:
  - Lemonldap-NG-Handler >= 2.0.0 < 2.16.10
  - Lemonldap-NG-Handler >= 2.17.0 < 2.21.6
  - Lemonldap-NG-Handler >= 2.22.0 < 2.23.4
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T14:17:24.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-95811'
references:
  - url: 'https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/3723'
    label: 9b29abf9-4ab0-4765-b253-1875cd9b441e
  - url: 'https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/releases/v2.16.10'
    label: 9b29abf9-4ab0-4765-b253-1875cd9b441e
  - url: 'https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/releases/v2.21.6'
    label: 9b29abf9-4ab0-4765-b253-1875cd9b441e
  - url: 'https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/releases/v2.23.4'
    label: 9b29abf9-4ab0-4765-b253-1875cd9b441e
  - url: 'https://www.cve.org/CVERecord?id=CVE-2020-24660'
    label: 9b29abf9-4ab0-4765-b253-1875cd9b441e
  - url: 'https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/work_items/3723'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-95811.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-95811'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-95811'
tags:
  - nvd
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-25T13:53:01.823535Z'
epss: 0.00252
epssPercentile: 0.14898
scores:
  nvd: 6.5
  adp: 6.5
  vendor: 5.4
ingestedAt: '2026-09-25T01:57:33.866Z'
---

## Overview

Lemonldap::NG::Handler versions from 2.0.0 before 2.16.10, from 2.17.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow an equivalent spelling of a path to bypass the locationRules that restrict it.

The handler matches each vhost's locationRules regular expressions against REQUEST_URI, the raw request line, while the web server routes on the path it has already percent-decoded and normalized. A request that percent-encodes a character of the path, inserts dot segments, or doubles a slash therefore reaches the protected resource under a URI that no rule regexp matches, and the vhost's default rule decides access. Deny rules, identity and group conditions, and unprotect and skip rules are bypassed alike.

Only a vhost whose default rule is more permissive than its other rules is affected. An authenticated user then reaches any URL a locationRules regexp was meant to restrict, but gains no more than that default rule already grants.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · updated 2026-09-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-95811.json)